Home / 205,163.27-283,172.55-120,307.67

Finding the Fourth Proportional to 205,163.27, 283,172.55 and 120,307.67

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Solution

The fourth proportional to 205,163.27, 283,172.55 and 120,307.67 is: 166,052.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,163.27 : 283,172.55 = 120,307.67 : x
  2. Step 2: Convert to fraction form
    205,163.27/283,172.55 = 120,307.67/x
  3. Step 3: Cross multiply
    205,163.27x = 283,172.55 × 120,307.67
  4. Step 4: Simplify right side
    205,163.27x = 34,067,829,096.92
  5. Step 5: Solve for x
    x = 34,067,829,096.92/205,163.27
  6. Step 6: Final answer
    x = 166,052.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.